Re: [APML] Horsehead and Pleiades testshots with 6x9 camera/OAG and BRC

[Chris1011@aol.com]

In a message dated 12/19/2001 9:16:44 AM Pacific Standard Time, tonyhallas@foothill.net writes:


>  When you throw in all the seeing effects over a 15 minute exposure and the guiding errors on top of that...


My argument has nothing to do with what you can reasonably expect to achieve, but with inflated specs that are theoretically nonsense. You will not capture 2 micron images on film, neither will you see them visually because they don't exist. There is always a temptation for marketeers to inflate, stretch and mislead. Is this good? Please note, I do not say that the instrument is not good or that it cannot achieve excellent performance. However, there is no need to stretch specs when selling a high end product like that. 

Roland Christen